Rii Geartist RT418 Bluetooth Transmitter and Audio Receiver (NFC/Apt-X) with 3.5mm Stereo Output 2-In-1 Adapter for iPhone 6/Plus/6s, Headphones, TV, Computer/PC, iPod, MP3/MP4, Car Stereo Rii Geartist RT418 bluetooth V3.0 2 in 1 Transmitter/Receiver ( Wireless Bluetooth Transceiver). Supports NFC. Making music great: Audio Hi-Fi transceiver, APT-X Audio Decoding & CSR Bluetooth 3.0. Super compact and lightweight (measures 2.64 x 1.66 x 0.38in) with a AUX cable design rectangular shape. Audio interface: TX/RX-3.5mm Audio Connector for PC ,Smart TV ,iPhone , iPod , iPad ,MP4 ,MP3,CD Player, Smart Phone and other 3.5mm audio connector 5.Long Transmission Distance up to 10m; Saving energy with Auto on/off function.Working time: Up to 7~7.5 hours